-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0957
                    rubygems and jruby security update
                               3 April 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           rubygems
                   jruby
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Modify Arbitrary Files         -- Remote with User Interaction
                   Cross-site Scripting           -- Remote with User Interaction
                   Denial of Service              -- Remote with User Interaction
                   Provide Misleading Information -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000078 CVE-2018-1000077 CVE-2018-1000076
                   CVE-2018-1000075  

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2018/04/msg00000.html
   https://lists.debian.org/debian-lts-announce/2018/04/msg00001.html

Comment: This bulletin contains two (2) Debian security advisories.
         
         This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running rubygems or jruby check for an updated version of the 
         software for their operating system.

- --------------------------BEGIN INCLUDED TEXT--------------------

Package        : rubygems
Version        : 1.8.24-1+deb7u2
CVE ID         : CVE-2018-1000075 CVE-2018-1000076 CVE-2018-1000077 
		 CVE-2018-1000078

Multiple vulnerabilities were found in rubygems, a package management 
framework for Ruby.

CVE-2018-1000075

    A negative size vulnerability in ruby gem package tar header that could
    cause an infinite loop.

CVE-2018-1000076

    Ruby gems package improperly verifies cryptographic signatures. A 
    mis-signed gem could be installed if the tarball contains multiple gem 
    signatures.

CVE-2018-1000077

    An improper input validation vulnerability in ruby gems specification
    homepage attribute could allow malicious gem to set an invalid homepage
    URL.

CVE-2018-1000078

    Cross Site Scripting (XSS) vulnerability in gem server display of 
    homepage attribute

For Debian 7 "Wheezy", these problems have been fixed in version
1.8.24-1+deb7u2.

We recommend that you upgrade your rubygems packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

=============================================================================

Package        : jruby
Version        : 1.5.6-5+deb7u1
CVE ID         : CVE-2018-1000075 CVE-2018-1000076 CVE-2018-1000077 
                 CVE-2018-1000078

Multiple vulnerabilities were found in the rubygems package management
framework, embedded in JRuby, a pure-Java implementation of the Ruby
programming language. 

CVE-2018-1000075

    A negative size vulnerability in ruby gem package tar header that could
    cause an infinite loop.

CVE-2018-1000076

    Ruby gems package improperly verifies cryptographic signatures. A 
    mis-signed
    gem could be installed if the tarball contains multiple gem signatures.

CVE-2018-1000077

    An improper input validation vulnerability in ruby gems specification
    homepage attribute could allow malicious gem to set an invalid homepage
    URL.

CVE-2018-1000078

    Cross Site Scripting (XSS) vulnerability in gem server display of 
    homepage     attribute

For Debian 7 "Wheezy", these problems have been fixed in version
1.5.6-5+deb7u1.

We recommend that you upgrade your jruby packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=ngn4
-----END PGP SIGNATURE-----